膩?zhàn)臃凼墙ㄖb飾材料的一種，主要成分是滑石粉和膠水。 剛剛購(gòu)置的毛坯房表面的一層白色是膩?zhàn)樱ǔＤ佔(zhàn)拥陌锥仍?0以上細(xì)度在330以上。
Putty powder is a kind of building decoration materials, the main components are talcum powder and glue. Just bought a layer of white on the surface of the blank room is putty, usually the whiteness of putty is more than 90, fineness is more than 330.
許多膩?zhàn)臃凼褂谜卟坏貌怀姓J(rèn)，膩?zhàn)幽z粉脫粉是一個(gè)很嚴(yán)重的問(wèn)題，它會(huì)引起乳膠漆的脫落，以及膩?zhàn)訉拥钠鸸模芽p，進(jìn)而引起乳膠漆飾面發(fā)生裂縫。
Many users of putty powder have to admit that it is a very serious problem for putty powder to come off. It will cause the peeling off of emulsion paint, the bulging and cracking of putty layer, and then the cracking of emulsion paint finish.
膩?zhàn)臃勖摲鄣舴邸⒌舭资悄壳案Ｒ?jiàn)的膩?zhàn)邮┕ず髥?wèn)題，要了解膩?zhàn)臃勖摲鄣脑颍紫纫私饽佔(zhàn)臃鄣幕驹牧辖M分與固化原理，然后結(jié)合膩?zhàn)邮┕r(shí)的墻面干燥程度、吸水率，溫度、天氣干燥程度等。今天膩?zhàn)臃蹚S家小編談一談膩?zhàn)臃鄣舴鄣闹饕颍黄饋?lái)看看吧!
It is the most common problem after the putty construction that the putty powder is removed from the powder and white. To understand the reasons of the putty powder removal, we should first understand the basic raw material components and curing principle of the putty powder, and then combine the dryness of the wall surface, water absorption, temperature and weather dryness during the putty construction. Today, putty powder manufacturers small series to talk about the main reasons for putty powder off powder, let's have a look!
原因一
Reason one
膩?zhàn)拥恼辰Y(jié)強(qiáng)度不夠造成脫粉，生產(chǎn)廠家一味的降低成本，膠粉的粘結(jié)強(qiáng)度差，添加量較小，特別是內(nèi)墻膩?zhàn)樱辰Y(jié)強(qiáng)度的大小，脫粉不脫粉和膠粉以及膠水的質(zhì)量和添加量有很大關(guān)系。
The adhesive strength of putty is not enough, which leads to powder removal. The manufacturer blindly reduces the cost. The adhesive strength of rubber powder is poor, and the amount of addition is small. Especially for the interior wall putty, the adhesive strength, powder removal without powder removal are closely related to the quality and amount of rubber powder and glue.
原因二
The second reason
設(shè)計(jì)配方不合理，選材的問(wèn)題和結(jié)構(gòu)的問(wèn)題，在膩?zhàn)优浞街泻苤匾１热缌u丙基甲基纖維素(HPMC)做內(nèi)墻不防水的膩?zhàn)樱琀PMC雖然很貴，但對(duì)雙飛粉，滑石粉，硅灰石粉等填充料不起作用，如果僅使用HPMC就會(huì)引起脫粉，而價(jià)格低的CMC、CMS反到不脫粉，但是CMC、CMS不能做防水膩?zhàn)樱膊荒茏鐾鈮δ佔(zhàn)樱驗(yàn)镃MC和CMS遇到灰鈣粉、白水泥起反應(yīng)，這都會(huì)引起脫粉，也有把聚丙烯酰胺加入灰鈣粉、白水泥做為防水涂料，也會(huì)起化學(xué)反應(yīng)引起脫粉。
Unreasonable design formula, material selection and structure are very important in putty formula. For example, hydroxypropyl methylcellulose (HPMC) is not waterproof putty for interior wall. Although HPMC is very expensive, it doesn't work for filling materials such as Shuangfei powder, talcum powder and wollastonite powder. If HPMC is used only, it will cause powder removal, while CMC and CMS with low price can't do it, but CMC and CMS can't do waterproof putty and exterior wall putty, because CMC and CMS meet lime powder and white cement Reaction, which will cause depigmentation, but also adding polyacrylamide to lime calcium powder, white cement as waterproof coating, will also have a chemical reaction to cause depigmentation.
原因三
The third reason
混合攪拌不均勻，是造成內(nèi)外墻膩?zhàn)用摲鄣闹饕颍珖?guó)有的生產(chǎn)廠家生產(chǎn)膩?zhàn)臃墼O(shè)備簡(jiǎn)單，五花八門，不是專用攪拌設(shè)備，攪拌不均勻，引起膩?zhàn)用摲邸?/div>
Uneven mixing and mixing is the main reason for the internal and external wall putty powder removal. Some manufacturers in China produce putty powder with simple and varied equipment, which is not a special mixing equipment. Uneven mixing causes putty powder removal.
原因四
Reason four
生產(chǎn)工藝的錯(cuò)誤造成膩?zhàn)用摲郏绻旌蠑嚢铏C(jī)沒(méi)有清掃的功能，殘留較多，普通膩?zhàn)又械腃MC就會(huì)和防水膩?zhàn)又械幕意}粉起反應(yīng)，內(nèi)墻膩?zhàn)又械腃MC、CMS和外墻膩?zhàn)拥陌姿嗥鸱磻?yīng)而造成脫粉。有的公司專用設(shè)備設(shè)置了清掃口，可以把機(jī)器中的殘留物清掃干凈，不僅保證膩?zhàn)拥馁|(zhì)量，還可以一機(jī)多用，買一臺(tái)設(shè)備生產(chǎn)多種膩?zhàn)印?/div>
If the mixing mixer has no cleaning function and there are many residues, the CMC in the ordinary putty will react with the lime powder in the waterproof putty, and the CMC, CMS in the interior wall putty and the white cement in the exterior wall putty will react to cause the powder removal. Some companies set up special equipment cleaning mouth, can clean up the residues in the machine, not only to ensure the quality of putty, but also can be a multi-purpose machine, buy a device to produce a variety of putty.
原因五
Five reasons
填充料的質(zhì)量的不同也容易造成脫粉，內(nèi)外墻膩?zhàn)哟罅康氖褂锰畛淞希鞯刂剽}粉、滑石粉里面Ca2CO3的含量不同，酸堿度不同也會(huì)造成膩?zhàn)拥拿摲郏热缰貞c和成都的內(nèi)墻膩?zhàn)臃塾猛瑯拥哪z粉，但滑石粉、重鈣粉不同，在重慶不脫粉，在成都就脫粉，在河南、東北不脫粉，而在一些地區(qū)就脫粉。
Different quality of fillers can easily lead to depigmentation. A large number of fillers are used for internal and external wall putty. However, the content of ca2co3 in heavy calcium powder and talc powder is different in different places, and the pH value is different. For example, the same rubber powder is used for internal wall putty in Chongqing and Chengdu, but talc powder and heavy calcium powder are different. In Chongqing, the powder is not depigmented, but in Chengdu, and in Henan and East China There is no flour removal in the north, but in some areas.
原因六
Reason 6
夏季外墻膩?zhàn)拥谋Ｋ粔颍貏e是在大樓高層門口、窗口等高溫通風(fēng)的地方，灰鈣粉和水泥的初凝時(shí)間不夠就已失去水份，又沒(méi)有養(yǎng)護(hù)好，也會(huì)嚴(yán)重脫粉。
In summer, the water retention of external wall putty is not enough, especially in high-temperature and ventilated places such as high-rise building doors and windows. If the initial setting time of lime, calcium powder and cement is not enough, the water will be lost, and if the maintenance is not good, the powder will be seriously removed.
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